Ana iya raba kayan waya da na USB zuwa kayan aiki, kayan kariya, kayan kariya, kayan kariya, kayan cikawa da sauransu bisa ga sassan amfani da ayyukansu.Dangane da kaddarorin kayan, ana iya raba shi zuwa ƙarfe (jan karfe, aluminum, aluminum gami, karfe), filastik (PVC, PE, PP, XLPE / XL-PVC, PU, ​​TPE / PO), roba, da dai sauransu Amma wasu na waɗannan kayan sun zama gama gari ga sassa da yawa.Musamman ma kayan thermoplastic, irin su polyvinyl chloride, polyethylene, idan dai ana iya amfani da canjin sashi na dabara a cikin rufi ko kwasfa.

Na gaba, za mu gabatar da na kowa maras karfe da kuma na USB albarkatun kasa

Daya, polyvinyl chloride (PVC)

Ana amfani da PVC gabaɗaya azaman rufi da kayan kariya.PVC a matsayin waya da kebul na rufi aikin: ba sauƙin ƙonewa, juriya na tsufa, juriya na mai, juriya na sinadarai, juriya mai tasiri, sauƙin canza launi;Duk da haka, saboda babban dielectric akai-akai, ana amfani dashi gabaɗaya azaman kayan rufewa na kebul mai ƙarancin wuta da kebul na sarrafawa.

PVC a matsayin waya da kebul na sheath yi: tare da juriya mai kyau, juriya ga man fetur, acid, alkali, kwayoyin cuta, danshi da hasken rana, da aikin wuta yana da aikin kashe kansa;Kwancen PVC yana da mafi ƙarancin zafin aiki na -40 ° C da babban juriya na 105 ° C.

Biyu, polyethylene (PE)

PE gabaɗaya kaddarorin jiki: farin waxy, translucent, taushi da tauri, ɗan ƙaramin iya shimfiɗa, haske fiye da ruwa, mara guba;Halayen konewa: mai ƙonewa, daga wuta don ci gaba da ƙonewa, babban ƙarshen harshen wuta yana rawaya kuma ƙananan ƙarshen shuɗi ne, narkewa mai narkewa lokacin ƙonewa, ba da ƙanshin ƙonawa na paraffin;Polyethylene sarrafa narkewa batu kewayon ne 132 ~ 1350C, ƙonewa zafin jiki ne 3400C, kwatsam konewa zafin jiki ne 3900C.

Polyethylene (PE) gabaɗaya an raba shi zuwa LDPE, MDPE, HDPE, FMPE da yawa nau'ikan.

1, LDPE: low yawa polyethylene yana daya daga cikin mafi haske jerin polyethylene, kuma aka sani da low-matsa lamba polyethylene, da tsarin halaye ne maras tushe, yana da low crystallinity da softening batu, yana da mafi sassaucin ra'ayi, elongation, lantarki rufi, nuna gaskiya, da kuma babban tasiri ƙarfi.Ƙananan ƙananan polyethylene yana da ƙarancin ƙarfin inji, ƙananan juriya na zafi kuma, a Bugu da kari, wani rauni a bayyane shine rashin juriya ga damuwa na muhalli.

2, MDPE: matsakaicin yawa polyethylene, kuma aka sani da matsakaici matsa lamba polyethylene da Philip polyethylene, ta yi da kuma high yawa polyethylene lokaci nuo, da ma'aikata da aka daina amfani, ba daki-daki a nan.

3, HDPE, babban yawa polyethylene tare da ƙananan polyethylene, kuma aka sani da babban matsa lamba polyethylene, yana da kyakkyawan aiki mai mahimmanci, kamar ingantaccen juriya na zafi da ƙarfin injiniya, kamar tsayin tsayi, ƙarfin lankwasawa, ƙarfin matsawa da ƙarfin ƙarfi), da inganta tururin ruwa da kaddarorin shingen iskar gas, juriyar fatattakar yanayi ya fi kyau.

4, FMPE: kumfa PE shine mafi yawan amfani da kayan kumfa, ta amfani da sinadarai mai kumfa polyethylene, ana iya rage yawan wutar lantarki zuwa kusan 1.55.Idan sabuwar fasaha ta ɗaukar kumfa ta jiki, wato, lokacin da ake fitar da iskar gas (nitrogen ko iska) a cikin kumfa polyethylene narkakkar, ana iya samun ƙaramin girman kumfa daga kumfa polyethylene, ana iya sarrafa digiri na kumfa tsakanin 35-40. %, fiye da 40% Zhui, dielectric akai-akai za a iya rage zuwa 1.20 ko makamancin haka, kuma saboda ba sa amfani da sinadarai kumfa, Rubutun ba ya ƙunshi ragowar wakili na kumfa, kuma ana iya rage asarar dielectric sosai, wanda ya kai. matakin rufewar iska.

Polyethylene yana da kyakkyawan aikin rufin lantarki kuma ana amfani dashi sosai a cikin rufin kebul na sadarwa.Don haɓaka alamun fasaha da tattalin arziki na igiyoyin sadarwa, ana amfani da kumfa polyethylene gabaɗaya.Domin inganta yanayin fatattaka danniya na muhalli, ban da amfani da XPE, kuma zai iya zaɓar ma'anar narkewa na ƙananan PE.Gabaɗaya, ƙarami nauyin kwayoyin halitta (mafi girman ma'aunin narkewa), mafi muni da juriya na fashewar yanayi.Ma'anar narkewar da ke ƙasa 0.4 na iya kauce wa fashewar damuwa na muhalli.Girman 0.950, alamar narkewa na ƙananan nau'in nau'in nau'in nau'in nau'in nau'in nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i nau'i) narke).Idan yawancin ya fi 0.95, juriya na damuwa na muhalli kuma ya fi muni, amma ƙananan yawa tare da ma'anar narkewa iri ɗaya ya fi kyau.Koyaya, gyare-gyaren HDPE sau da yawa yana da ragowar damuwa na ciki, wanda yakamata a kula da shi yayin aiwatar da amfani.

Haɗa PE da EVA a cikin wani ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ƙayyadaddun ma'auni na iya haɓaka ɓarkewar damuwa na muhalli na iya haɓaka ɓarkewar damuwa na muhalli na iya inganta haɓakar damuwa na muhalli;Mix tare da PP zai iya inganta taurin;Haɗe da PE na nau'i daban-daban, na iya daidaita laushi da taurin sa.

Ethylene - vinyl acetate copolymer (EVA)

EVA wani nau'i ne na thermoplastic tare da na roba kamar nuo rubber, aikinsa da abun ciki na vinyl acetate (VA) yana da dangantaka mai kyau: ƙananan VA ya fi kama da polyethylene mai girma, kuma mafi yawan VA ya fi kama da roba.EVA nuo babban matsin polyethylene tare da ƙarancin abun ciki na VA, mai laushi da ƙarfin tasiri mai kyau, dacewa da kera kayan haɗin gwiwa.

EVA yana da kyawawa mai kyau da ƙananan zafin jiki, juriya na sinadarai, juriya na yanayi, da kuma LDPE copolymerization, na iya inganta juriya na fatattakar muhalli na LDPE, juriya mai tasiri, taurin kai da mannewa tsakanin jagora da rufi.

Tetrapolypropylene (PP)

Ƙayyadaddun nauyin polypropylene shine 0.89 zuwa 0.91, wanda shine mafi ƙanƙanci a cikin robobi na kowa.Yana da kyakkyawan ƙarfin injina, mafi girman zafin jiki mai laushi a cikin resin thermoplastic, da ƙarancin ƙarancin zafin jiki da juriya na tsufa.Juriya juriya na gani kawai ba ta da kyau, amma ana iya inganta ta ta hanyar copolymerization tare da stabilizers.

Janar Properties na polypropylene: bayyanar PP ne sosai kama da HDPE, shi ne wani farin waxy m, mafi m fiye da PE, ba mai guba, combustible kuma zai ci gaba da ƙone bayan wuta, da kuma saki warin man fetur nuo.

Idan aka kwatanta da polyethylene, polypropylene yana da halaye daban-daban masu zuwa:

1, PP taurin saman ya fi PE girma, juriya da juriya da lankwasawa ikon suna da kyau sosai, don haka PP an san shi da "ƙananan ƙarancin ƙarfin filastik".

2, PP yana da kyau fiye da PE wani fa'ida kusan babu wani yanayi na damuwa na yanayi, PP yana da kyakkyawan juriya ga damuwa na muhalli.Duk da haka, saboda babban tsarin tsarin kwayoyin halitta na PP, tasirin tasirinsa a dakin da zafin jiki da ƙananan zafin jiki yana da talauci sosai.

3, THE lantarki rufi yi na PP: PP ne ba iyakacin duniya abu, don haka akwai mai kyau lantarki rufi.

Rufin wutar lantarki yana da kama da LDPE, kuma baya canzawa a cikin kewayon mitar mai faɗi.Saboda ƙananan ƙarancinsa, dielectric akai-akai ya fi LDPE (ε = 2.0 ~ 2.5), asarar dielectric asarar Angle tangent shine 0.0005 ~ 0.001, ƙarfin juzu'i na 1014 ω.M, ƙarfin filin raguwa kuma yana da girma sosai, 30MV/m;Bugu da ƙari, shayar da ruwa yana da ƙananan ƙananan, don haka PP za a iya amfani dashi azaman babban abin rufewa.

Kayan polyester guda biyar

Irin wannan nau'in kayan yana da yanayin haɓaka mai girma, tsayin daka mai tsayi, juriya mai tsayi, tsayi mai tsayi da ƙarancin lag, babban iyaka na zafin jiki mai dacewa shine 1500C, fiye da sauran roba thermoplastic, amma kuma yana da kyakkyawan juriya mai, juriya mai ƙarfi. halaye.